[PATCH V4 0/5] perf: Add PERF_RECORD_SWITCH to indicate context switches

[Adrian Hunter <adrian.hunter@intel.com>]

Hi

Here is V4 of PERF_RECORD_SWITCH.

Changes in V4:

    perf: Add PERF_RECORD_SWITCH to indicate context switches
        Use a separate record format PERF_RECORD_SWITCH_CPU_WIDE
        for the CPU-wide case that includes the next/previous pid/tid

    perf tools: Add new PERF_RECORD_SWITCH event
        Amended to handle PERF_RECORD_SWITCH_CPU_WIDE

    perf record: Add option --switch-events to select PERF_RECORD_SWITCH events
        Add PERF_RECORD_SWITCH_CPU_WIDE to documentation

    perf script: Don't assume evsel position of tracking events
        New patch

    perf script: Add option --show-switch-events
        Add PERF_RECORD_SWITCH_CPU_WIDE to documentation

Changes in V3:

Rename 'perf_event_switch()' parameter 'out' to be 'sched_in'
and invert meaning.

Changes in V2 (RFC):

The event now shows scheduling in and out,
and I added next/prev pid/tid for cpu-wide
contexts, plus there are some tools patches
that apply to Arnaldo's perf/core branch.


Adrian Hunter (5):
      perf: Add PERF_RECORD_SWITCH to indicate context switches
      perf tools: Add new PERF_RECORD_SWITCH event
      perf record: Add option --switch-events to select PERF_RECORD_SWITCH events
      perf script: Don't assume evsel position of tracking events
      perf script: Add option --show-switch-events

 include/uapi/linux/perf_event.h          |  31 +++++++++-
 kernel/events/core.c                     | 103 +++++++++++++++++++++++++++++++
 tools/perf/Documentation/perf-record.txt |   4 ++
 tools/perf/Documentation/perf-script.txt |   4 ++
 tools/perf/builtin-inject.c              |   1 +
 tools/perf/builtin-record.c              |   7 +++
 tools/perf/builtin-script.c              |  41 ++++++++++--
 tools/perf/perf.h                        |   1 +
 tools/perf/util/event.c                  |  28 +++++++++
 tools/perf/util/event.h                  |  12 ++++
 tools/perf/util/evlist.h                 |   1 +
 tools/perf/util/evsel.c                  |   4 ++
 tools/perf/util/machine.c                |  11 ++++
 tools/perf/util/machine.h                |   2 +
 tools/perf/util/record.c                 |  10 +++
 tools/perf/util/session.c                |  20 ++++++
 tools/perf/util/tool.h                   |   1 +
 17 files changed, 275 insertions(+), 6 deletions(-)


Regards
Adrian